A terminal housing includes: a bottom metal frame, a feed line and a communication module, wherein a plurality of through holes are formed in the bottom metal frame; each through hole is filled with a dielectric, and a feeding point and a grounding point are arranged at each side of each through hole, respectively; one end of the feed line is connected with a radio frequency port of the communication module; and another end of the feed line crosses the dielectric in each through hole to be connected with the corresponding feeding point, so as to enable the bottom metal frame and the dielectrics in the plurality of through holes to form an antenna unit.